Do I need to spot face these screw in stud bosses for guide plates? PIC

I have a pair of new, odd ball EQ Lightning Vortec heads. They came with screw in studs but no guide plates (or any product literature). I know on some heads that used screw in studs but no guide plates, if you want to add guide plates you need to machine the stud bosses down by the thickness of

This listing is for a brand new rocker arm stud and guide plate kit. Kit includes 8 guide plates and 16 rocker arm studs. The guide plates are the

3/8 Rocker Arm Studs & Guide Plate Kit for SBC Small Block Chevy 262, 265, 267, 283, 302, 305, 307, 327, 350 And 400 V8 Engines

Bill Mitchell Products BMP 088510 – Aluminum Engine Block Hemi Block 10.720 Deck, 4.240 Bore, Billet Caps – Bill Mitchell Products

Screw-in Rocker studs! Vortec Heads *Part #'s in description*

Earth Bosses - Kingsmill Industries

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EXTRUDE-TITE® screw for thin metal sheet - CELO

Do I need to spot face these screw in stud bosses for guide plates? PIC

Pontiac Heaven - Rocker arm studs. am sure you have